I think selling enough to make any significant savings towards a building might be hard. Assuming this are mockups, final product would want some better font than just Microsoft word type over picture. (What kind of building, $250k, 50k, 5k shack?)

It would be a huge undertaking and I don't know what kind of supplies you have to work with but maybe more one of those events where people pay to mess with/handle WW2 stuff. (Kinda a mix between those machine gun shoots w/ the tank you can fire and a normal fund raising dinner where people pay $100 a plate kind of thing.)